低频与高频超声序贯联合判读对胆囊息肉样病变良恶性的鉴别价值OA

Objective To investigate the value of low-frequency ultrasonography,high-frequency ultrasonography,and a sequential combined interpretation strategy for differentiating benign and malignant gallbladder polypoid lesions.Methods A total of 120 patients with gallbladder polypoid lesions who underwent surgery and obtained pathological diagnoses at Qi County Hospital of Traditional Chinese Medicine from April 2022 to April 2024 were included.Patients underwent both low-and high-frequency ultrasonography before surgery.When the findings of the two examinations were concordant,the result was directly taken as the combined interpretation.When the findings were discordant,a third senior imaging physician made an integrated judgment based on both sets of ultrasonographic images.Postoperative pathological findings were used as the reference standard.The accuracy,sensitivity,and specificity of low-frequency ultrasonography,high-frequency ultrasonography,and the combined interpretation strategy were calculated.Lesion diameter,blood flow signals,and spectral Doppler characteristics were also compared among different pathological types.Results Among the 120 patients,84(70.00%)had benign lesions and 36(30.00%)had polypoid-type early gallbladder carcinoma on pathological examination.The accuracy,sensitivity,and specificity of low-frequency ultrasonography were 81.67%,69.44%,and 86.90%,respectively;those of high-frequency ultrasonography were 85.00%,75.00%,and 89.29%,respectively;and those of the combined interpretation strategy were 97.50%,97.22%,and 97.62%,respectively.Significant differences were observed among different pathological types in lesion diameter and in the distributions of blood flow signals and spectral Doppler characteristics(P＜0.05).Conclusion In high-risk patients with gallbladder polypoid lesions undergoing surgery,sequential combined assessment using low-and high-frequency ultrasonography,supplemented by expert integrated interpretation in discordant cases,can achieve high diagnostic accuracy,sensitivity,and specificity.This strategy may provide useful assistance in differentiating benign gallbladder polypoid lesions from polypoid-type early gallbladder carcinoma.However,its incremental diagnostic value over either ultrasonographic examination alone requires further validation using complete paired data.